After a string of picture-perfect days, a winter storm is expected to bring a genuine taste of the season and between 2 and 4 inches of new snow to the Boulder area by Thursday morning, according to the National Weather Service.

After peaking at a spring-like 62 degrees on Tuesday -- and basking in some more unseasonable warmth this afternoon -- temperatures began to drop after sundown today, reaching a chilly 34 by 6:30 p.m. as a storm system moved into the area.

According to Kari Bowen, a meteorologist with the National Weather Service in Boulder, flakes should begin to fall by 9 p.m. with the most intense periods of snowfall expected between 11 p.m. and 3 a.m. Thursday.

In total, between 2 and 4 inches of new snow accumulation is expected in the Boulder area, according to forecasts.

The overnight low is expected to be near 12 degrees. Flurries are expected to taper off by sundown, Bowen said.

The National Weather Service warns of potentially icy road conditions that will accompany the morning commute.

Thursday's forecast calls for mostly cloudy skies with a high of 30 and a 30 percent chance of snow before 8 a.m. The overnight low is expected to be in the high teens, with winds 6 to 11 mph and gusts as high as 16 mph.

Friday's forecast calls for sunny skies with a high in the low 50s, foreshadowing another warm and sunny weekend.